AQA GCSE Biology · 8461
Specification 4.2.2.1 · Paper 1
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GCSE Biology · key term
A substance that produces an observable change indicating whether a particular type of chemical is present.
Used by AQA and OCR
Specification 4.2.2.1 · Paper 1
Specification PAG 2 · Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
A test chemical that produces an observable result, such as a colour change, to indicate whether a substance is present.
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